breaking news in japan. a very powerful earthquake in the pacific ocean triggered a tsunami warning in this morning. it caused buildings to sway in tokyo. >>> bracing for more violence in egypt. soldiers in barbed-wire barricades block the palace in congress. >>> and today is december 7th, 71 years to the day after the japanese attack on pearl harbor, a day that will live in infamy. flags are at half-staff to honor the 2,400 americans who died. >>> showers from portland to seattle. snow in the cascades, northern rockies and upper midwest. also, showers from chicago to new york. >>> finally from us this morning, the late-night comics can't seem to get enough of the goings on in washington. >> nor could we. and we start with stephen colbert addressing new speculation he would run for senate from his own state of south carolina. >> tonight's big story comes from my home state of south carolina. big, breaking news in this town. senator jim demint, a tea party favorite and conservative icon, is surprisingly resig